Hyper

I think it could be either:

Which length description are you looking for?:

10*

ultra

'hyper' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for ultra that I've seen before include "Extreme (as in UV)" , "Far beyond the norm" , "Prefix meaning beyond or extremely" , "Immoderate" , "such sound treatment?" .)

I've seen this clue in the LA Times and the Newsday.

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